Feeding device



Dec. 23, 1941.

c. L. POST FEEDING DEVICE Filed April 4, 1940 aeaax Patented Dec. 23,1941 FFlCE 1- FEEDING DEVICE Claude L. Post, Chicago, Ill. ApplicationApril 4, 1940, Serial No. 327,781

3 Claims.

This invention relates to feeding devices, and particularly to a devicefor feeding fiat stock, such as paper and the like, through a machinefor performing work on the stock.

The present invention is an improvement on the feeding device disclosedin Letters Patent No. 1,826,020, issued to me October 6, 1931, and theimproved structure of the present application is shown and will bedescribed in relationv to a printing machine of the character disclosedtherein.

Among other objects, the present invention is intended to provide anovel construction and arrangement whereby proper feeding of stock tothe machine and holding of the work in relation thereto is assured.

Another object of the invention is to provide a novel constructionwhereby various kinds of stock having various degrees of thickness maybe fed to the machine, and whereby the make-ready on the impression rollof a printing machine may be changed or altered without change oradjustment of the feeding device.

Another object of the invention is to provide a feeding device of novelconstruction which is V economical to manufacture, easily applied to asupporting roll, durable in its construction, efficient in itsoperation, and satisfactory for use wherever found applicable.

Another object of the invention is to provide a feeding ring of novelconstruction, which is particularly applicable to relatively small highspeed cylinders, and which is particularly efficient when used thereon.

A further object of the invention is to provide a feeding ring having apliable resilient feeding surface engageable with the stock, and whichmay be conveniently and quickly applied to a roller and readily adjustedwith respect thereto.

A still further object of the invention is to improve devices of thecharacter described in sundry details hereinafter referred to andparticularly pointed out in the appended claims.

One embodiment of the present invention is shown for illustrativepurposes in the accompanying drawing in which:

Fig. 1 is a sectional elevational view through a portion of a printingpress illustrating the application of my improved feeding ring thereto;

Fig. 2 is a face view of the type roll illustrated in Fig. 1 showing apair of my improved feeding rings applied thereto;

Fig. 3 is an enlarged transverse sectional view of a type rollillustrating the manner of applying the improved feeding ring thereto;and

Fig. 4 is a perspective view of my improved feeding ring illustrated inFigs. 1, 2 and 3.

As illustrated in Fig; 1, the present invention is shown applied to aprinting press having a type roll indicated, as a whole, by the numeral5, inkingrolls .6, and an impression roll 1 adapted to cooperate withthe type roll in a manner to receive a sheet of stock such, for example;as paper, envelopes, or the like to be operated upon by the printingmachine v In the illustrative structure, the type roll is provided witha type grooved adapted to receive a plurality of type bars 9 such, forexampleas Linotype slugs or the like, and formed in the periphery of thetype roll are a plurality of radially disposed elongated recesses orgrooves ll suitably spaced and positioned around the periphery of thetype roll.

For feeding stock between the type roll 5 and impression roll 1, and forholding the stock against shifting while the type on the bars 9 is inengagement therewith, a resilient split ring l2, having an annulardimension in excess of of a circle and extending around more than halfof the circumference of the type roll 5 when in position thereon, isprovided with an inwardly extending portion I3 adapted to engage one ofthe recesses or grooves H to secure the ring against annulardisplacement on the roller, and for providing a high degree offrictional engagement with the stock in its passage between the typeroll 5 and impression roll 1, a pliable resilient pad or strip l4 formedpreferably of rubber is secured to the outer surface of the ring l2 byvulcanizing or other suitable means and is intended to extend throughouta substantial portion of the ring 12, preferably the entire lengththereof.

It will be apparent that by such an arrangement, the portion l3 of thering l2 may be positioned in one of the grooves II and the ring expandedand snapped over the type roll '5 in the manner illustrated in Fig. 3,and that by reason of the rubber pad on the outer surface of the ring, avery desirable degree of friction is available for contact with thestock during the printing operation.

It will be apparent also that by reason of the pliability and resilientcharacter of the rubber pad [4, the feeding device of the presentstructure will handle stock of various degrees of thickness in itspassage through the printing machine, and will permit of changes in themake-ready on the impression roll of a printing machine without changeor adjustment of the feeding device, and that the resilient character ofthe pad also contributes materially to the wearing qualities of thedevice and provides a structure, which is durable and can be effectuallyused for a long period of time without replacement of the pad.

It will be apparent from the foregoing description that the presentinvention provides a novel construction and arrangement of a feedingdevice for feeding stock, such as paper or the like, through a machinefor performing work on the stock, and wherein the stock is securely heldagainst shifting, and wherein the feeding device may be readily appliedto a roll and secured against annular displacement with respect thereto,but at the same time being movable longitudinally thereof.

Obviously, the present invention is not limited to the preciseconstruction and arrangement shown and described as the same may bevariously modified without departing from the spirit and scope of theinvention as set forth in the appended claims.

What I claim as new and desire to secure by Letters Patent is:'

1. In a feeding device of the character described and in combination, aroller having a radially disposed recess formed therein, a resilientsplit ring mounted. on said roller, said ring having means associatedtherewith and engageable with said recess for securing the ring againstannular displacement with respect to said roller, and a resilientfriction pad secured to the outer side of said ring, said ring beingsufllciently expansible to permit spreading of the ends thereof adistance greater than the diameter of said roller, whereby said ring maybe transversely applied to and engaged with said roller.

2. A feeding device of the character described and in combination, aroller having a recess formed therein, a resilient split ring slidablymounted on said roller, said ring having an inwardly extending portionformed integrally therewith and engageable with said groove for securingthe ring against annular displacement on said roller while permittinglongitudinal movement of the ring thereon, and a strip of rubber securedto the outer face of said ring, said ring being sufficiently expansibleto permit spreading of the ends thereof a distance greater than thediameter of said roller, whereby said ring may be transversely appliedto and engaged with said roller.

3. A feeding device comprising a resilient split ring having an annulardimension in excess of of a circle when in feeding position, an inwardlyextending portion formed integrally with said ring adjacent one endthereof, and a flexible filler strip of suitable material secured to theouter face of said ring, said ring being sufficiently expansible topermit spreading of the ends thereof a distance greater than thediameter of said circle.

CLAUDE L. POST.

